fix(hooks): preserve WSL desktop notify success path

scripts/hooks/desktop-notify.js

@@ -71,7 +71,12 @@ function notifyWindows(pwshPath, title, body) {
   const command = `Import-Module BurntToast; New-BurntToastNotification -Text '${safeTitle}', '${safeBody}'`;
   const result = spawnSync(pwshPath, ['-Command', command],
     { stdio: ['ignore', 'pipe', 'pipe'], timeout: 5000 });
-  return result.status === 0;
+  if (result.error || result.status !== 0) {
+    const stderr = typeof result.stderr?.toString === 'function' ? result.stderr.toString().trim() : '';
+    log(`[DesktopNotify] BurntToast failed (exit ${result.status}): ${result.error ? result.error.message : stderr}`);
+    return false;
+  }
+  return true;
 }
 
 /**
@@ -108,20 +113,6 @@ function notifyMacOS(title, body) {
   }
 }
 
-/**
- * Send a Windows Toast notification via PowerShell BurntToast.
- * Used when running under WSL to show notification on Windows desktop.
- */
-function notifyWindows(pwshPath, title, body) {
-  const safeBody = body.replace(/'/g, "''");
-  const safeTitle = title.replace(/'/g, "''");
-  const command = `Import-Module BurntToast; New-BurntToastNotification -Text '${safeTitle}', '${safeBody}'`;
-  const result = spawnSync(pwshPath, ['-Command', command], { stdio: ['ignore', 'pipe', 'pipe'], timeout: 5000 });
-  if (result.error || result.status !== 0) {
-    log(`[DesktopNotify] BurntToast failed (exit ${result.status}): ${result.error ? result.error.message : result.stderr?.toString()}`);
-  }
-}
-
 /**
  * Fast-path entry point for run-with-flags.js (avoids extra process spawn).
  */

tests/hooks/desktop-notify.test.js

@@ -0,0 +1,118 @@
+/**
+ * Tests for scripts/hooks/desktop-notify.js
+ */
+
+const assert = require('assert');
+const fs = require('fs');
+const Module = require('module');
+const path = require('path');
+
+const modulePath = path.join(__dirname, '..', '..', 'scripts', 'hooks', 'desktop-notify.js');
+const moduleSource = fs.readFileSync(modulePath, 'utf8');
+
+function test(name, fn) {
+  try {
+    fn();
+    console.log(`  ✓ ${name}`);
+    return true;
+  } catch (error) {
+    console.log(`  ✗ ${name}`);
+    console.log(`    Error: ${error.message}`);
+    return false;
+  }
+}
+
+function loadDesktopNotify({ procVersion = 'Linux version microsoft', spawnImpl, isMacOS = false }) {
+  const logs = [];
+  const mod = new Module(modulePath, module);
+  mod.filename = modulePath;
+  mod.paths = Module._nodeModulePaths(path.dirname(modulePath));
+
+  const originalRequire = mod.require.bind(mod);
+  mod.require = request => {
+    if (request === 'child_process') {
+      return { spawnSync: spawnImpl };
+    }
+    if (request === '../lib/utils') {
+      return {
+        isMacOS,
+        log: message => logs.push(message),
+      };
+    }
+    if (request === 'fs') {
+      return {
+        ...fs,
+        readFileSync(target, encoding) {
+          if (target === '/proc/version') {
+            return procVersion;
+          }
+          return fs.readFileSync(target, encoding);
+        }
+      };
+    }
+    return originalRequire(request);
+  };
+
+  const platformDescriptor = Object.getOwnPropertyDescriptor(process, 'platform');
+  Object.defineProperty(process, 'platform', {
+    configurable: true,
+    value: 'linux',
+  });
+
+  try {
+    mod._compile(moduleSource, modulePath);
+  } finally {
+    Object.defineProperty(process, 'platform', platformDescriptor);
+  }
+
+  return { run: mod.exports.run, logs };
+}
+
+let passed = 0;
+let failed = 0;
+
+if (
+  test('successful WSL toast does not log BurntToast install guidance', () => {
+    const calls = [];
+    const { run, logs } = loadDesktopNotify({
+      spawnImpl(command, args) {
+        calls.push({ command, args });
+        if (calls.length === 1) {
+          return { status: 0, stderr: Buffer.from('') };
+        }
+        return { status: 0, stderr: Buffer.from('') };
+      }
+    });
+
+    const payload = JSON.stringify({ last_assistant_message: 'Build completed successfully' });
+    assert.strictEqual(run(payload), payload);
+    assert.strictEqual(calls.length, 2, 'Expected PowerShell probe and notification send');
+    assert.strictEqual(logs.length, 0, `Expected no warnings, got: ${logs.join('\n')}`);
+  })
+)
+  passed++;
+else failed++;
+
+if (
+  test('failed WSL toast logs failure and install guidance once', () => {
+    const { run, logs } = loadDesktopNotify({
+      spawnImpl(command, args) {
+        if (args[1] === 'exit 0') {
+          return { status: 0, stderr: Buffer.from('') };
+        }
+        return { status: 1, stderr: Buffer.from('module missing') };
+      }
+    });
+
+    const payload = JSON.stringify({ last_assistant_message: 'Done' });
+    assert.strictEqual(run(payload), payload);
+    assert.ok(logs.some(message => message.includes('BurntToast failed')), 'Expected BurntToast failure log');
+    assert.ok(logs.some(message => message.includes('Install BurntToast module')), 'Expected install tip');
+  })
+)
+  passed++;
+else failed++;
+
+console.log(`\nPassed: ${passed}`);
+console.log(`Failed: ${failed}`);
+process.exit(failed > 0 ? 1 : 0);